Heze (Chinese: 菏泽; Pinyin: Hézé) is a prefecture-level city in southwestern Shandong province, People's Republic of China. The westernmost prefecture-level city in Shandong, it borders Jining to the east and the provinces of Henan and Anhui to the west and south respectively.

The prefecture-level city of Heze administers 9 county-level divisions, including 1 district and 8 counties.

• Mudan District (牡丹区)
• Dingtao County (定陶县)
• Cao County (曹县)
• Chengwu County (成武县)
• Shan County (单县)
• Juye County (巨野县)
• Yuncheng County (郓城县)
• Juancheng County (鄄城县)
• Dongming County (东明县)

These are further divided into 158 township-level divisions.

Heze is the largest center in China for the cultivation of the "national flower" peony, after which the Mudan District was named. Over 30% of its national income comes from the sale of peony. According to the government's materials in 1995,there is about 800,000 people living in this areas.